javascript - 比较 Javascript 中每个数组属性的数值

Question

我正在尝试寻找解决方案:

用户被要求按顺序输入一组随机数字:

var num1 = prompt("Enter 1st set of numbers");
var num2 = prompt("Enter 2nd set of numbers"); 
var num3 = prompt("Enter 3rd set of numbers");

var myNumbers =[num1, num2, num3];

现在我试图比较数组每个元素中的数字总和。例如，如果 myNumbers[0] = 32，myNumber[1] = 45，则比较 5 (3+2) 和 9 (4+5) 的函数是什么？

我试图通过添加该元素中的数字来比较每个元素的总和，并返回最大的数字。因此，如果 num1= 1234，则 myNumbers[0] 的总和应为 10。通过比较，如果 num2 = 3456，则总和应为 18，函数应返回 num2。

Answer 1

var num1 = prompt("Enter 1st set of numbers");
var num2 = prompt("Enter 2nd set of numbers"); 
var num3 = prompt("Enter 3rd set of numbers");

// finds the sum of your array, parsing each element as an integer
var sum = function(array){
  var digits = array.split("")
  return digits.reduce(function(a, b) {return parseInt(a, 10) + parseInt(b, 10)})
}

var myNumbers =[num1, num2, num3]
var findLargest = function(array){
  var answer
  var largest = 0
  array.forEach(function(input){
        // check if this is the largest sum
        if (sum(input) == largest){
          // check if there is already a running set of equal sums
  	  if (typeof(answer) == Object) answer.push(input)
          // create set of equal sums if not
          else answer = [answer, input]
        }
        else if (sum(input) > largest) {
          largest = sum(input)
          answer = input
        }
      })
      return answer
    }

alert(findLargest(myNumbers))

https://jsfiddle.net/gmebk2Ly/7/

这还会检查是否有多个输入相等